Manufacturing Technology for Aerospace Structural Materials

Appendix A: Metric Conversions

To Convert From

To

Multiply By

Area

in 2

mm 2

6.451 600E + 02

in 2

cm 2

6.451 600E + 00

in 2

m 2

6.451 600E ? 04

ft 2

m 2

9.290 304E ? 02

Force

lbf

N

4.448 222E + 00

kip (1000 lbf)

N

4.448 222E + 03

Fracture Toughness

ksi in.

Mpa m

1.098

Length

mil

?m

2.540 000E + 01

in.

mm

2.540 000E + 01

in.

cm

2.540 000E + 00

ft

m

3.048 000E ? 01

yd

m

9.144 000E ? 01

Mass

oz

kg

2.834 952E ? 02

lb

kg

4.535 924E ? 01

Mass Per Unit Area (Areal Weight)

oz/in 2

kg/m 2

4.395 000E + 01

oz/ft 2

kg/m 2

3.051 517E ? 01

oz/yd 2

kg/m 2

3.390 575E ? 02

lb/ft 2

kg/m 2

4.882 428E + 00

Mass Per Unit Volume (Density)

lb/in 3

g/cm 3

2.767 990E + 01

lb/in 3

kg/m 3

2.767 990E + 04

lb/ft 3

g/cm 3

1.601 846E ? 02

lb/ft 3

kg/m 3

1.601 846E + 01

Press (Fluid)

lbf/in 2 (psi)

Pa

6.894 757E + 03

in. of Hg (60 F)

Pa

3.386 850E + 03

atm (Standard)

Pa

1.013 250E + 05

To Convert From

To

Multiply By

Stress (Force Per Unit Area)

lbf/in 2 (psi)

MPa

6.894 757E ? 03

ksi (1000 psi)

MPa

6.894 757E + 00

msi
(1000000...

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